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The Rise, Progress and Influence of the “Scientific American” - pp257 - 258
doi:10.1038/scientificamerican04161859-257
Extension of Patents—Important to the Inventors of 1845 - p259
doi:10.1038/scientificamerican04161859-259a
Interesting Items of Useful Information about Patents and Patent Law Cases - pp260 - 262
doi:10.1038/scientificamerican04161859-260
Description of the New Offices of the “Scientific American“ - pp263 - 264
doi:10.1038/scientificamerican04161859-263a
Sensation of Heat from Carbonic Acid - pp264 - 265
doi:10.1038/scientificamerican04161859-264a
Franklinite Iron Ores and Sulphur - pp265 - 267
doi:10.1038/scientificamerican04161859-265b
Observations on the Connection of the Elements by their Atomic Weights - p268
doi:10.1038/scientificamerican04161859-268
